gridripper::amr1d::Regridder Class Reference

Regridder base class. More...

Inheritance diagram for gridripper::amr1d::Regridder:

List of all members.

Public Member Functions
abstract Regridder	newRegridder (Grid p)
abstract Regridder	cloneRegridder ()
boolean	isDynamic ()
	Tests whether mesh refinement is dynamic.
boolean	isFlagged (int i)
	Tests whether the specified grid point are flagged.
void	setFlagged (int i, boolean v)
	Sets flag on a grid point.
abstract int	getInvFreqUnit ()
abstract boolean	isErrorEstimated ()
abstract void	setLastRegridTime (int t)
abstract int	getLastRegridTime ()
abstract boolean	checkRegriddingIsDue (Grid g, int maxAllowedLevel, boolean onInitialHypersurface, int r, int ir, int errorCheckFreq, int regridFreq)
void	init (int maxi)
	Initialization.
void	checkErrors (Integrator integrator, double critical)
	Flag the points where the error is larger than critical.
abstract IntervalList	getIntervalList (Grid grid, Grid[] newSubSubgrids, int minl, int maxl, int numvel, int margin, int bufzoneradius, int tsc)
	Generates a list of new subgrids from the flagged points.
abstract void	beginTimeStep (Grid baseg)
	Called before each time step.
abstract void	endTimeStep (double t)
	Called after each time step.
Static Public Member Functions
static Regridder	create (String str) throws IllegalArgumentException
Protected Member Functions
abstract boolean	hasUncoveredFlaggedPoint (Grid grid, Grid[] subGrids, int margin)
	Checks if there exists any flagged point which is not covered by a refined subgrid.
int	getFirstIndexForRefinement (Grid g, byte[] pf)
	Gets the first point to start refinement interval searching.
int	findIntervalEndForRefinement (Grid g, byte[] pf, int i)
	Finds the right edge of an interval that needs refinement.
int	intervalRefinedSize (Grid g, IntervalList iv, int r)
int	gridIndexLeftOf (Grid g, int i, int dmax)
int	gridIndexRightOf (Grid g, int i, int dmax)
void	fixSubgridNearBounds (Grid g, IntervalList l, IntervalList r, int margin)
Static Protected Member Functions
static void	blur (Grid g, byte[] pf, int i)
	Both neighbors of points with the specified value in an array are set to value plus 1.

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Detailed Description

Regridder base class.

Version:

0.5, 07/15/2008

Since:

GridRipper 0.3, 02/21/2005

Author:

Peter Csizmadia

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Member Function Documentation

boolean gridripper::amr1d::Regridder::isDynamic

(

)

[inline]

Tests whether mesh refinement is dynamic.

Points can only be flagged in case of dynamic refinement.

Returns:

true if it is dynamic, false otherwise

See also:

setFlagged(int, boolean)

setLastRegridTime(int)

Reimplemented in gridripper::amr1d::regridder::DefaultRegridder.

boolean gridripper::amr1d::Regridder::isFlagged

(

int

i

)

[inline]

Tests whether the specified grid point are flagged.

Returns:

true if flagged, false otherwise

Reimplemented in gridripper::amr1d::regridder::DefaultRegridder.

void gridripper::amr1d::Regridder::setFlagged	(	int	i,
		boolean	v
	)			[inline]

Sets flag on a grid point.

Parameters:

	i	point index
	v	true to flag, false to unflag it

Reimplemented in gridripper::amr1d::regridder::DefaultRegridder.

abstract boolean gridripper::amr1d::Regridder::hasUncoveredFlaggedPoint	(	Grid	grid,
		Grid[]	subGrids,
		int	margin
	)			[protected, pure virtual]

Checks if there exists any flagged point which is not covered by a refined subgrid.

Returns:

true if there are such flagged points, false otherwise

Implemented in gridripper::amr1d::regridder::DefaultRegridder, and gridripper::amr1d::regridder::InRegridder.

void gridripper::amr1d::Regridder::init

(

int

maxi

)

[inline]

Initialization.

Parameters:

maxi

grid maximum index

Reimplemented in gridripper::amr1d::regridder::DefaultRegridder.

void gridripper::amr1d::Regridder::checkErrors	(	Integrator	integrator,
		double	critical
	)			[inline]

Flag the points where the error is larger than critical.

Parameters:

	integrator	the grid integrator
	critical	the critical error value

Reimplemented in gridripper::amr1d::regridder::DefaultRegridder.

abstract IntervalList gridripper::amr1d::Regridder::getIntervalList	(	Grid	grid,
		Grid[]	newSubSubgrids,
		int	minl,
		int	maxl,
		int	numvel,
		int	margin,
		int	bufzoneradius,
		int	tsc
	)			[pure virtual]

Generates a list of new subgrids from the flagged points.

Parameters:

	grid	the grid
	newSubSubgrids
	minl	the minimum level to regrid, larger than or equal to zero and smaller than Integer.MAX_VALUE if the grids are regenerated, Integer.MAX_VALUE at the first generation
	maxl	the maximum allowed refinement level
	numvel	the error propagation velocity
	margin	margin for new grids
	bufzoneradius	size of the buffer zone
	tsc	time step count

Returns:

the list of intervals to refine

Implemented in gridripper::amr1d::regridder::DefaultRegridder, gridripper::amr1d::regridder::InRegridder, and gridripper::amr1d::regridder::OutRegridder.

static void gridripper::amr1d::Regridder::blur	(	Grid	g,
		byte[]	pf,
		int	i
	)			[inline, static, protected]

Both neighbors of points with the specified value in an array are set to value plus 1.

Parameters:

	g	the grid
	pf	nonzero values in this array indicate the need of refinement
	i	the value

int gridripper::amr1d::Regridder::getFirstIndexForRefinement	(	Grid	g,
		byte[]	pf
	)			[inline, protected]

Gets the first point to start refinement interval searching.

Parameters:

	g	the grid
	pf	nonzero values in this array indicate the need of refinement

Returns:

the index

int gridripper::amr1d::Regridder::findIntervalEndForRefinement	(	Grid	g,
		byte[]	pf,
		int	i
	)			[inline, protected]

Finds the right edge of an interval that needs refinement.

Parameters:

	g	the grid
	pf	nonzero values in this array indicate the need of refinement
	i	the left edge index

Returns:

the right edge index

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The documentation for this class was generated from the following file:

• gridripper/amr1d/Regridder.java